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Dodecyltrimethylammonium Bromide

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Dodecyltrimethylammonium Bromide Basic information

Product Name:
Dodecyltrimethylammonium Bromide
Synonyms:
  • 1-Dodecanaminium,N,N,N-trimethyl-,bromide
  • ammonium,dodecyltrimethyl-,bromide
  • Dodecayltrimethylaminiumbromide
  • dodecyltrimethyl-ammoniubromide
  • e8013
  • n,n,n-trimethyl-1-dodecanaminiubromide
  • n,n,n-trimethyl-1-dodecanaminiubromidentis**ots0545456
  • CetrimideSubstitute
CAS:
1119-94-4
MF:
C15H34BrN
MW:
308.34
EINECS:
214-290-3
Product Categories:
  • Ammonium Bromides (Quaternary)
  • Quaternary Ammonium Compounds
  • Ion-pair Reagents
Mol File:
1119-94-4.mol
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Dodecyltrimethylammonium Bromide Chemical Properties

Melting point:
246 °C (dec.)(lit.)
Density 
1.1566 (rough estimate)
vapor pressure 
0Pa at 20℃
refractive index 
1.5260 (estimate)
Flash point:
246°C
storage temp. 
Store below +30°C.
solubility 
H2O: 0.1 M at 20 °C, clear, colorless
form 
Powder
color 
White to slightly yellow
Water Solubility 
soluble
Sensitive 
Hygroscopic
λmax
λ: 240 nm Amax: ≤0.2
λ: 250 nm Amax: ≤0.03
λ: 260 nm Amax: ≤0.02
λ: 500 nm Amax: ≤0.02
BRN 
3597463
InChIKey
XJWSAJYUBXQQDR-UHFFFAOYSA-M
CAS DataBase Reference
1119-94-4(CAS DataBase Reference)
EPA Substance Registry System
1-Dodecanaminium, N,N,N-trimethyl-, bromide (1119-94-4)
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Safety Information

Hazard Codes 
Xi,Xn,N
Risk Statements 
36/37/38-22-50/53
Safety Statements 
26-36-37/39-61-60
RIDADR 
UN3077
WGK Germany 
3
RTECS 
BQ3195000
3-10
TSCA 
Yes
HazardClass 
9
PackingGroup 
III
HS Code 
29239000
Toxicity
LD50 orally in Rabbit: 200 - 1000 mg/kg

MSDS

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Dodecyltrimethylammonium Bromide Usage And Synthesis

Chemical Properties

white to slightly yellow powder

Uses

(1-Dodecyl)trimethylammonium bromide is used as a surfactant, as an emulsifier of rubber and asphalt and as an anti-static agent of synthetic fiber. It acts as an ionic surfactant and useful in the preparation of gold nanopartilces along with sodium dodecylsulfate. It is also used as paint strippers and foaming stabilizers. It is used to prepare dodecyltrimethylammonium bromide. By using conductimetry, density measurements, and small angle neutron scattering, it is used to study the micelle formation in water-dimethylsulfoxide mixture. Further, it is a useful biochemical for proteomics research.

Uses

Dodecyltrimethylammonium Bromide is a quaternary ammonium salt useful as paint strippers, foaming stabilizers, and bactericidal lotions.

Uses

Dodecyltrimethylammonium bromide has been used in a study to assess the distribution of binary mixed counterions in surfactant adsorbed films. It has also been used in a study to investigate chain length compatibility of surfactants for extraction of organophosphorous pesticides.

Definition

ChEBI: A quarternary ammonium cation having one dodecyl and three methyl substituents around the central nitrogen.

General Description

Dodecyltrimethylammonium bromide is a quaternary ammonium surfactant.

Flammability and Explosibility

Not classified

Purification Methods

Purify the salt by repeated crystallisation from acetone. Wash it with diethyl ether and dry it in a vacuum oven at 60o [Dearden & Wooley J Phys Chem 91 2404 1987]. [Beilstein 4 IV 798.]

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